years ago I had a 95 mitsubishi galant and the interior was grey. Well I tried to change it to black the same way I'm doing it now except that I was really impatient. I had just armoralled the dash and everything when I got the idea to paint it. Well I didn't clean anything and just sprayed righ over it. Classic rice. It started peeling off the next day and looked horrible. It's a good thing that the car broke down cause no one would have bought it. I mean, just tapping the dash with a finger nail would scratch paint off. That was a hoot!